bsnes/gb/system/system.cpp

80 lines
1.9 KiB
C++

#include <gb/gb.hpp>
namespace GameBoy {
#include "serialization.cpp"
System system;
System::System() {
for(auto& byte : bootROM.dmg) byte = 0;
for(auto& byte : bootROM.sgb) byte = 0;
for(auto& byte : bootROM.cgb) byte = 0;
}
auto System::run() -> void {
scheduler.sync = Scheduler::SynchronizeMode::None;
scheduler.enter();
if(scheduler.exit_reason == Scheduler::ExitReason::FrameEvent) {
interface->videoRefresh(video.palette, ppu.screen, 4 * 160, 160, 144);
}
}
auto System::runtosave() -> void {
scheduler.sync = Scheduler::SynchronizeMode::CPU;
runthreadtosave();
scheduler.sync = Scheduler::SynchronizeMode::All;
scheduler.active_thread = ppu.thread;
runthreadtosave();
scheduler.sync = Scheduler::SynchronizeMode::All;
scheduler.active_thread = apu.thread;
runthreadtosave();
scheduler.sync = Scheduler::SynchronizeMode::None;
}
auto System::runthreadtosave() -> void {
while(true) {
scheduler.enter();
if(scheduler.exit_reason == Scheduler::ExitReason::SynchronizeEvent) break;
if(scheduler.exit_reason == Scheduler::ExitReason::FrameEvent) {
interface->videoRefresh(video.palette, ppu.screen, 4 * 160, 160, 144);
}
}
}
auto System::init() -> void {
assert(interface != nullptr);
}
auto System::load(Revision revision) -> void {
this->revision = revision;
serialize_init();
if(revision == Revision::SuperGameBoy) return; //Super Famicom core loads boot ROM for SGB
interface->loadRequest(ID::SystemManifest, "manifest.bml", true);
auto document = BML::unserialize(information.manifest);
if(auto bootROM = document["system/cpu/rom/name"].text()) {
interface->loadRequest(
revision == Revision::GameBoy ? ID::GameBoyBootROM : ID::GameBoyColorBootROM,
bootROM, true
);
}
}
auto System::power() -> void {
bus.power();
cartridge.power();
cpu.power();
ppu.power();
apu.power();
scheduler.init();
clocks_executed = 0;
}
}